Wilson Shift 99 v1 Tennis Racket  Ideal for intermediate to advanced, all-around players Agiplast plant-based bumper, grommet, and end cap Innovative string pattern and vertical bending profile for stability Laterally flexible for controllable power and devastating spin W|Labs ARC 3D innovation that maximizes lateral bending without losing torsional stability Carrying case included Specifications:  Grip Size: 3 (4 3/8) Head Size: 99 square inches Length: 27 inches String Pattern: 16x20 Strung Balance (pts): -6 pts Strung Weight (ounces): 11.15 ounces Please reach out to Wilson for any warranty information.   Style: wr200410f